<template>
	<!-- <div> -->
	<button @click="animateButton" class="bubbly-button">{{ name }}</button>
	<!-- </div> -->
</template>

<script setup>
	import { ref, onMounted } from "vue";

	// 组件传值
	const props = defineProps({
		name: {
			default: "Button",
			type: String
		}
	});
	// 这个是提前声明 函数
	let emit = defineEmits(["btnComponent"]);
	// 向父组件传递一个函数
	onMounted(() => {});
	const animateButton = function (e) {
		e.preventDefault;
		e.target.classList.remove("animate");
		e.target.classList.add("animate");
		setTimeout(function () {
			e.target.classList.remove("animate");
		}, 700);
		emit("btnComponent");
	};
</script>
<style scoped lang="scss">
	$fuschia: #fc00f2;
	$button-bg: $fuschia;
	$button-text-color: #fff;
	$baby-blue: #f8faff;

	body {
		font-size: 16px;
		font-family: "Helvetica", "Arial", sans-serif;
		text-align: center;
		background-color: $baby-blue;
	}
	// .box {
	// 	height: 50px;
	// 	width: 200px;
	// }
	.bubbly-button {
		font-family: "Helvetica", "Arial", sans-serif;
		display: inline-block;
		font-size: 1em;
		// padding: 1em 2em;
		height: 100%;
		width: 100%;
		// margin-top: 100px;
		// margin-bottom: 60px;
		-webkit-appearance: none;
		appearance: none;
		background-color: $button-bg;
		color: $button-text-color;
		border-radius: 15px;
		border: none;
		cursor: pointer;
		position: relative;
		transition: transform ease-in 0.1s, box-shadow ease-in 0.25s;
		box-shadow: 0 2px 25px rgba(255, 0, 130, 0.5);

		&:focus {
			outline: 0;
		}

		&:before,
		&:after {
			position: absolute;
			content: "";
			display: block;
			width: 140%;
			height: 100%;
			left: -20%;
			z-index: -1000;
			transition: all ease-in-out 0.5s;
			background-repeat: no-repeat;
		}

		&:before {
			display: none;
			top: -75%;
			background-image: radial-gradient(circle, $button-bg 20%, transparent 20%), radial-gradient(circle, transparent 20%, $button-bg 20%, transparent 30%),
				radial-gradient(circle, $button-bg 20%, transparent 20%), radial-gradient(circle, $button-bg 20%, transparent 20%), radial-gradient(circle, transparent 10%, $button-bg 15%, transparent 20%),
				radial-gradient(circle, $button-bg 20%, transparent 20%), radial-gradient(circle, $button-bg 20%, transparent 20%), radial-gradient(circle, $button-bg 20%, transparent 20%),
				radial-gradient(circle, $button-bg 20%, transparent 20%);
			background-size: 10% 10%, 20% 20%, 15% 15%, 20% 20%, 18% 18%, 10% 10%, 15% 15%, 10% 10%, 18% 18%;
			//background-position: 0% 80%, -5% 20%, 10% 40%, 20% 0%, 30% 30%, 22% 50%, 50% 50%, 65% 20%, 85% 30%;
		}

		&:after {
			display: none;
			bottom: -75%;
			background-image: radial-gradient(circle, $button-bg 20%, transparent 20%), radial-gradient(circle, $button-bg 20%, transparent 20%),
				radial-gradient(circle, transparent 10%, $button-bg 15%, transparent 20%), radial-gradient(circle, $button-bg 20%, transparent 20%), radial-gradient(circle, $button-bg 20%, transparent 20%),
				radial-gradient(circle, $button-bg 20%, transparent 20%), radial-gradient(circle, $button-bg 20%, transparent 20%);
			background-size: 15% 15%, 20% 20%, 18% 18%, 20% 20%, 15% 15%, 10% 10%, 20% 20%;
			//background-position: 5% 90%, 10% 90%, 10% 90%, 15% 90%, 25% 90%, 25% 90%, 40% 90%, 55% 90%, 70% 90%;
		}

		&:active {
			transform: scale(0.9);
			background-color: darken($button-bg, 5%);
			box-shadow: 0 2px 25px rgba(255, 0, 130, 0.2);
		}

		&.animate {
			&:before {
				display: block;
				animation: topBubbles ease-in-out 0.75s forwards;
			}
			&:after {
				display: block;
				animation: bottomBubbles ease-in-out 0.75s forwards;
			}
		}
	}

	@keyframes topBubbles {
		0% {
			background-position: 5% 90%, 10% 90%, 10% 90%, 15% 90%, 25% 90%, 25% 90%, 40% 90%, 55% 90%, 70% 90%;
		}
		50% {
			background-position: 0% 80%, 0% 20%, 10% 40%, 20% 0%, 30% 30%, 22% 50%, 50% 50%, 65% 20%, 90% 30%;
		}
		100% {
			background-position: 0% 70%, 0% 10%, 10% 30%, 20% -10%, 30% 20%, 22% 40%, 50% 40%, 65% 10%, 90% 20%;
			background-size: 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%;
		}
	}

	@keyframes bottomBubbles {
		0% {
			background-position: 10% -10%, 30% 10%, 55% -10%, 70% -10%, 85% -10%, 70% -10%, 70% 0%;
		}
		50% {
			background-position: 0% 80%, 20% 80%, 45% 60%, 60% 100%, 75% 70%, 95% 60%, 105% 0%;
		}
		100% {
			background-position: 0% 90%, 20% 90%, 45% 70%, 60% 110%, 75% 80%, 95% 70%, 110% 10%;
			background-size: 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%;
		}
	}
</style>
